Cyber Security Clearance Jobs in Reston, VA (NOW HIRING)

Cybersecurity Engineer (Secret Clearance) Who We Are:
ThinkTek LLC is a fast-growing Certified SBA 8(a) and Service-Disabled Veteran-Owned Small Business (SDVOSB) company. We specialize in providing management and technology consulting services to support the business and technology modernization efforts of the Federal Government. ThinkTek was formed with the specific purpose of providing its clients a tailored solution around Program & Project Management, Strategic Planning, and IT Operations. Position Overview We are seeking an experienced Cybersecurity Engineer to support a Federal Government customer by providing advanced cybersecurity engineering, assessment, and compliance support. This position serves as a senior cybersecurity practitioner responsible for implementing and assessing security controls, maintaining system authorization packages, conducting security assessments, and supporting risk-based authorization decisions across a portfolio of mission-critical systems. The Cybersecurity Engineer will work across traditional, cloud-native, and SaaS environments, supporting the Risk Management Framework (RMF), Cybersecurity Risk Management Construct (CSRMC), Continuous Authorization to Operate (cATO), and Zero Trust initiatives. The role requires deep expertise in cybersecurity engineering, security compliance automation, cloud security, vulnerability analysis, risk assessment, and governance, risk, and compliance (GRC) processes. This position requires a highly skilled cybersecurity professional with strong technical expertise, project management experience, and an active Secret security clearance. Responsibilities * Serve as the lead cybersecurity engineer and Information System Security Officer (ISSO) supporting a portfolio of DSCA mission systems across on-premises, cloud, and SaaS environments. * Lead RMF and Cybersecurity Risk Management Construct (CSRMC) activities, including system authorization, continuous monitoring, and maintenance of ATO/cATO packages. * Manage and maintain eMASS records, authorization artifacts, control implementation evidence, and Plans of Action & Milestones (POA&Ms). * Assess and validate NIST 800-53, DoD RMF, DISA STIG, FedRAMP, and DoD Cloud Computing Security Requirements Guide (CC SRG) security controls. * Conduct security control assessments and independent validations to evaluate control effectiveness and support risk-informed authorization decisions. * Develop Security Assessment Plans (SAPs), Security Assessment Reports (SARs), Risk Assessment Reports (RARs), and authorization recommendation memorandums. * Analyze vulnerabilities, security findings, automated scan results, and threat data to assess mission impact and prioritize remediation activities. * Review and validate Compliance-as-Code (CaC), Policy-as-Code (PaC), and automated security assessment outputs to ensure accuracy and compliance. * Collaborate with system owners, developers, engineers, and program stakeholders to implement security controls, address findings, and reduce enterprise risk. * Support DevSecOps and cloud security initiatives by integrating security throughout the system development lifecycle and continuous delivery processes. * Monitor security posture across AWS cloud, traditional infrastructure, and SaaS platforms, ensuring compliance with federal and DoD cybersecurity requirements. * Brief government leadership and Authorizing Officials on system risk posture, assessment results, remediation strategies, and authorization recommendations. Required Qualifications * Active Secret Security Clearance. * Bachelor's degree in Information Technology, Computer Science, Engineering or a related technical field from an accredited college or university. * Minimum 5 years of dedicated Information Assurance, Cybersecurity, or Information Security experience. * At least 3 consecutive years of recent experience supporting DoD cybersecurity programs. * Experience with Risk Management Framework (RMF) authorization processes. * Experience administering and maintaining eMASS authorization packages. * Experience conducting security control assessments, validations, and risk assessments. * Experience supporting ATO, cATO, and continuous monitoring programs. * Experience analyzing vulnerabilities, security findings, and organizational risk posture. * Experience supporting cloud security initiatives in AWS, Azure, or other FedRAMP-authorized environments. * Strong understanding of NIST 800-53 security controls and DISA STIG requirements. Required Certifications Candidates must possess: * One DoD 8570/8140 IAM Level II or IAT Level ll baseline requirements, such as: * CISSP * Security+ CE * CISM * CASP+ CE Pay Range The anticipated annual salary range for this position is $150,030 – $185,020. This range is a good-faith estimate and not a guarantee of compensation. Final compensation will be based on factors including experience, education, skills, geographic location, internal equity, market data, and applicable contract requirements, and may fall outside the posted range. **THIS POSITION IS CONTINGENT UPON CONTRACT AWARD** ThinkTek LLC is proud to be an Equal Opportunity Employer (EOE), making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. ThinkTek offers medical, dental, and vision insurance to all full-time employees; PTO and a variety of other paid leave options are also available. You can read more about ThinkTek benefits at https://www.thinktekllc.com/careers/.